Means for collecting drill-cuttings.



M. L. SARGENT. MEANS FOB COLLECTING DRILL OUTTINGS.

` APPLICATION FILED HAY 6, 19`09.

Patented Apr. 26, 1910.

mls Hlllllll (Inman-1j UNITED STATES .PATENT oEEIoE.

MARTIN L. SARGENT, F.ILEIADVIZILIELi COLORADO, ASSIGNOR TO THE DRILL DUST A CATCHER CQMPANY, A. CQRPORATION 0F COLORADO.

Specification of Letters Patent.

Patented Apr. 26,1910.

Application filed May 6, 1909. Serial No. 494,221.

'j To all whom/it 'ma/y concern:

' ing Drill-Cuttings, of whichfthe following is a specification, reference being-had to the accompanying drawings.

This invenrzlon relates to means for collecting drill cuttings and more particularly .p

a devlce adapted to be attached to the ordinary pneumatic rock drills used inmining of all kinds. i t

The objects of the invention are to provide a simple, inexpensive, practical and effective collecting device for the dust and cuttings from the drill; an improved air tight connection between the collecting casing or chamber and the outer end lof the drill hole,

and improved detachable and air tight connections between the several parts ot the device and the tool. Y

Vith the above and other objects in view, the invention consists of thenovel features of construction and the combination and arrangement of arts hereinafter fully described and claimed, and illustrated in the accompanying drawings, in which- Figure 1 is a longitudinal section through the preferred embodiment of the invention showing the use of the same; Fig. 2 is a detail side elevation of the invention. on a reduced scale; and Fig. 3 is a vertical sectionV taken on the plane indicated by the line 3*-3 in Fig. .1.A 4 l In the drawings 1 denotes a casing 'or sheath arranged to surroundthe bit B of a drilling machine M and adapted to have at one end an air ti ht joint or connection with the outer end o a drill hole H and at .its other end an a'r tight connection with the chuck C or ot er portion of the machine M and lalso with a discharge conductor 2. The casing 1 is' preferably made of ieXible-material such ascanvas or similar fabric and it may be of any size and shape'which will permit `it to serve as a collecting-chamber for the major portion of the dust and cuttings metal or other rigid material-which is inserted in the drill holev-I- I and is of such shape and construction that no air will be permitted to escape around it. To facilitate the insertion of the tubular member 3 in the hole H and to also provide an air tight contact between said member and the wall of the hole, said member is tapered longitudinally, as shown but, if desired, I may provide upon the exterior of said member a acking 4. of yieldable or elastic material whichwill be compressed when the member is driven into the hole to effectively prevent the escape of air around the member. Said tubularmember 3 is of greater diameter than the bit B and, consequently, the hole H-must be made by a bit of greater diameter than the onel used for the regular drilling operation.

The tubular member 3 which is preferably constructed of meta is made detachable from the casing 1 so that it maybe easily and tightly driven into the hole H, and, in order to provide an effective detachable air tight connection between said casing and said member, the former has at its open inlet end a tubular mouth 5 of fieXi- 4ble or elastic material such as rubber Itubing. Said mouth 5 is adapted to slip on the outer end ef the member 3 and to abut against a shoulder formed by an annular flange 6 on said member. Said tubular 'mouth 5 has its inner end reinforced 'by a metal ring 7 arranged within it and united to it by rivets or other fasteuings, as shown in Fig. 1, and said end is secured within the reduced outer end of the v casing 1 by Aa. divided clam ing ring 8, the spaced apertured ends o which are drawn together by a clamping bolt 9. By providing the elastic tubular mouth 5,' it will be seen that the outer end of the casing 1 may be easily4 removed from the tubular member 3 to ermit the contents of the casing yto be disc arged and by fastening the mouth 5 to the casing 1 by means of the clamping ring or band 8, said casing when wornV out may be readily replaced by a new one.

The inner or rear end of thecasing 1 is preferably made with a larger opening and the opposite portions of the walls of-said `opening 'are brought together, as shown at 10, in Fig. 3, and united by one or more rows of stitching 11 so as to form two o enings which receive elastic tubularco ars gripping portions which receive the collars 12, 13 between them and which are clam ed thereon by clamping bolts 15, 16 provi ed in their spaced outer ends and intermediate portions, as clearly shown in Fig. 3. The collar 12 is reinforced by an inner ring 17 riveted within it and a similar metal ring 18 is arranged within the other collar 13. A ring 19 of rubber, leather or similar material is preferably interposed between the, ring 18 and collar 13 to serve as a shoulder against which the chuck C abuts to provlde a more effective air tight connection at this point.

The outlet or discharge conductor 2 1s in the form of a tube made of flexible material and held distended by an inclosed coil spring 20. A tubular elastic collar 21 similar to but slightly larger than the collar 12 is yadapted to receive and frictionally engage the latter and it is inserted in the end ofthe conductor or pipe 2 and secured therein by a clamping band 22 similar to the clamp 8 above described. A metal reinforcing ring 23 is arranged within the collar 21 to reinforce the same and to provide a stop shoulder for the collar 12, as clearly shown in Fig. v1 of the drawings. Said conductor.2 may be of anylength and lead to any point of discharge but 1n practice I preferably make it about ten feet in length because I nd that by the time the exhaust air passes out of a pipe or tube of such length, all of the dust which it carries will have settled upon the bottom of such pipe.V In fact, I End that fully ninety per cent. of the dust and chippings from the drill .settle upon the bottom of the casing 1.v

In operation, the hole I-I 'is drilled with a large bit and the rigid tubular member 3 is then driven into it so as to provide a tight joint or connection. applied to the tool and bit and the bit is passed through the member 3y and the mouth 5 of the casing is engaged with the outer end of said member. In the operation of the drill, the casing 1 will be. collapsed as the bit moves into the rock and it willy collect all of the dust and cuttings of the drill, the blast of air from the exhaust of the driving engine for the drill being driven through the tubular bit and discharged atthe bottom of the hole so that all of the dust and chippings will be blown rearwardly through the The casing 1 is then.

the one illustrated, and it will also be understood that various changes in the form, proportion and arrangement of parts and in the details of construction may be resorted to within the spirit and `scope of the invention.

Having thus `described the invention what is claimed is: i

1. In combination with a bit, of a tubular member to surround the bit and adapted to be inserted in a drill hole to effect an air tight connection therewith, a flexible casing forming a collecting chamber and having an outlet and a detachable connection between said casing and said member.

2. In combination with a bit, of a tubular member to surround the bit and adapted to be inserted in a drill hole to effect an air tight connection therewith, a flexible casing forming a collecting member and having an inlet and an outlet opening, an elastic tubu- 'inember to' surround the bit and adapted to be inserted in a drill hole\tol effect an air tight connection therewith, a casing of iexif ble material having an outlet, and an open outer end, an elastic tubular mouth iece inserted in the open outer end of sai casing, a reinforcing band .secured within said mouth piece atits inner end and a clamping band for retaining the mouth iece within the casing, said mouth piece being adapted to engage said tubular member.

4. In combination with a bit, of a tubular member lto surround the bit and adapted to be inserted in a drill hole to effect an air tight connection therewith, a flexible casing forming a collecting1 chamber and having a.`

portions of the walls of its large open en secured to ether to provide two open portions, flexi le collars arranged in said open portions, a double clamp for retaining said t collars in the casing', one' of said collars being adapted to engage the shank of the bit and an outlet conductor connected to the other of said collars.

5. In combination with a hollow bit through which air under pressure is forced to the hole being drilled, of a tubular mem- 956,1e1 y a ber to surround the bit and adapted to be inserted Vin the drill hole to effect an airtight-.connection therewith, said member hevingel cylindrical end, a collecting casing',- k

MARTIN L. SARGENT.

Witnesses:

J. A. GRmsAUER, Jr., H. F. MCQUAY.;

5 and an elastic cylindrical mouth piece secured'in said caslng and adapted to receive the cylindrical end of said tubular member. 

